Improvement in gas apparatus



J. MUCABE.

C. LRD &. B.

Gas-.Apparatus.

Patented Goti-9,1875.

' TTUBNEYS.

UNITED STATEs PATENT OEETGE.

CHARLES LORD AND BERNARD J. MCOABE, OF SHELBYVILLE, INDIANA.

IMPROVEMENT IN GAS APPARATUS.

Specification forming part of Letters Patent N o. l 68,909, dated October i9, 1875; application led August 28, 1875.

To all who-m it may concern Beit known that we, CHARLES LoRD and BERNARD J. MCGABE, of Shelbyville, in the county of Shelby and Stateyof Indiana, have invented a new and Improved Gas-Retort, of which the following is a specication:

Our invention consists of an exterior clay retort, containing au interior metal retort, into which the substance to be distilled is discharged from a pipe, which first conducts the material along the heated portion of the furnace for heating it to a certain extent before it enters the retorts. The object is to provide means for converting crude or reined coal and natural oils into more permanently fixed gas than they can be in the ordinary retorts, the essential novelty being in the contrivance by which a clay retort can be used for this purpose without injury by the oils, which, when coming in contact with the clay, saturate and disintegrate it, so as to destroy it in ashort time. This is accomplished in this case by lirst vaporizing the oil inthe feedpipe, and then discharging it into the iron retort, where the vaporizing process is continued, so as to destroy the penetrating power, and then discharging it into the clay retort, where it is subjected to greater heat than the metal retorts are capable ot' sustaining, and is thereby converted into xed gas. As a further safeguard for the protection of the clay retort from the oil, the iron retort is so constructed that any oil that may flow into it cannot escape until it is vaporized.

Figure l is a plan View of our improved retort. Fig. 2 is a longitudinal section of Fig.

1 on line w x, and Fig. 3 is a cross-section on line y y.

Similar letters of reference indicate corresponding parts.

A is the clay retort 5' B, the interior iron retort, and O the feed-pipe. The retorts are preferably ot' the ordinary D shape. The in.

ner one lies on the bottom ofthe other, and is contrived so that the cover E for the mouth of A also forms its cover, and it has an elevation, F, of its open end, to retain any oil that may enter it until vaporized, so that it will not injure the clay. The feed-pipe discharges directly into B, near its closed end, so that the oil. gets the benefit of the heat in B as it passes along to its discharge into A, where it is subjected to greater heat, and from which it passes off as fixed gas through the pipe G CHARLES LORD. v BERNARD J. MGCABE. Witnesses:

J. T. HAOKMAN, N. B. BERRYMAN. 

